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Turn the X86 emitter into a class, so the code pointer is no longer a global, yay! Created XCodeBlock that derives from XEmitter, and the Jit now derives from XCodeBlock so it can call all ADD SUB JNZ etc without having to prefix them with "emit.". I think someone's gonna like this.

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There's some cleanup still to be done, but hey, it works. There shouldn't be a noticable speed difference.

I hope GCC doesn't have a problem with the "member function pointers" I used.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@1594 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
hrydgard
2008-12-19 21:24:52 +00:00
parent b5dcdcf779
commit 104acd5bc1
31 changed files with 1297 additions and 1153 deletions
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50
Source/Core/Common/Src/Thunk.cpp
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@ -18,33 +18,29 @@
#include <map>
#include "Common.h"
#include "Thunk.h"
#include "x64Emitter.h"
#include "MemoryUtil.h"
#include "ABI.h"
#include "Thunk.h"
using namespace Gen;
ThunkManager thunks;
#define THUNK_ARENA_SIZE 1024*1024*1
namespace {
static std::map<void *, const u8 *> thunks;
u8 GC_ALIGNED32(saved_fp_state[16 * 4 * 4]);
u8 GC_ALIGNED32(saved_gpr_state[16 * 8]);
static u8 *thunk_memory;
static u8 *thunk_code;
static const u8 *save_regs;
static const u8 *load_regs;
static u16 saved_mxcsr;
}
void Thunk_Init()
namespace
{
thunk_memory = (u8 *)AllocateExecutableMemory(THUNK_ARENA_SIZE);
thunk_code = thunk_memory;
GenContext ctx(&thunk_code);
static u8 GC_ALIGNED32(saved_fp_state[16 * 4 * 4]);
static u8 GC_ALIGNED32(saved_gpr_state[16 * 8]);
static u16 saved_mxcsr;
} // namespace
using namespace Gen;
void ThunkManager::Init()
{
AllocCodeSpace(THUNK_ARENA_SIZE);
save_regs = GetCodePtr();
for (int i = 2; i < ABI_GetNumXMMRegs(); i++)
MOVAPS(M(saved_fp_state + i * 16), (X64Reg)(XMM0 + i));
@ -89,31 +85,27 @@ void Thunk_Init()
RET();
}
void Thunk_Reset()
void ThunkManager::Reset()
{
thunks.clear();
thunk_code = thunk_memory;
ResetCodePtr();
}
void Thunk_Shutdown()
void ThunkManager::Shutdown()
{
Thunk_Reset();
FreeMemoryPages(thunk_memory, THUNK_ARENA_SIZE);
thunk_memory = 0;
thunk_code = 0;
Reset();
FreeCodeSpace();
}
void *ProtectFunction(void *function, int num_params)
void *ThunkManager::ProtectFunction(void *function, int num_params)
{
std::map<void *, const u8 *>::iterator iter;
iter = thunks.find(function);
if (iter != thunks.end())
return (void *)iter->second;
if (!thunk_memory)
if (!region)
PanicAlert("Trying to protect functions before the emu is started. Bad bad bad.");
GenContext gen(&thunk_code);
const u8 *call_point = GetCodePtr();
// Make sure to align stack.
#ifdef _M_X64